Home / 13,890,735.15-20,831,688.74-12,983,980.00

Finding the Fourth Proportional to 13,890,735.15, 20,831,688.74 and 12,983,980.00

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Solution

The fourth proportional to 13,890,735.15, 20,831,688.74 and 12,983,980.00 is: 19,471,844.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890,735.15 : 20,831,688.74 = 12,983,980.00 : x
  2. Step 2: Convert to fraction form
    13,890,735.15/20,831,688.74 = 12,983,980.00/x
  3. Step 3: Cross multiply
    13,890,735.15x = 20,831,688.74 × 12,983,980.00
  4. Step 4: Simplify right side
    13,890,735.15x = 270,478,229,797,306.84
  5. Step 5: Solve for x
    x = 270,478,229,797,306.84/13,890,735.15
  6. Step 6: Final answer
    x = 19,471,844.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.